二钠

The reaction of sodium alkylcycloperitadienide with metal chlorides gave derivatives of bisdichlorides of titanium, zirconium and hafnium where alkyls were n-propyl and n-butyl.

本文报导烷基环戊二烯基钠与金属氯化物反应合成钛、锆和铪的双金属二氯化物以及通过卤素交换制备双钛的二氟化物的方法。

The main reason for the deactivation is that the catalysts react directly with methyl formate produced to form alkali formates (sodium formate and potassium formate) and diemthyl ether.

导致催化剂活性降低的主要原因是甲醇钠可以直接与产物甲酸甲酯反应形成甲酸钠和二甲醚。

Cellulose, mannitol, hydroxypropyl methylcellulose phthalate, citric acid, sodium starch glycolate, glyceryl triacetate, modified cellulose gum, stearic acid, colloidal silicon dioxide, titanium dioxide and yellow ochre.

纤维素，甘露醇，羟丙基甲基纤维素邻苯二甲酸酯，柠檬酸，淀粉钠乙醇，三醋酸甘油酯，改性纤维素胶，硬脂酸，胶质二氧化矽，二氧化钛和黄赭色。

The results showed 3 types of aluminum compound prepared in this paper all had good poison protection effectiveness on such impurities as stannous chloride,lead oxide,sodium hydrogen sulfate,and so on.Moreover,the mechanism of the poison of catalyst was also discussed.

结果表明，合成的3种防中毒剂即防－1、防－2(主要成分为乙酰丙酮合铝)及防－3(主要成分为二乙酰丙酮基异丙氧基铝)对二月桂酸二丁基锡、氯化亚锡、二正丁胺、硫脲、氧化铅及硫酸氢钠等杂质均有较好的防中毒作用；不同防中毒剂对不同杂质的防中毒作用有一定的选择性。

Light oil 2,000 yuan / ton; ferrocene 20000 yuan / ton; DME 2,500 yuan / ton; Light EPA [density 0.60-0.63] 2,000 yuan / ton; sodium bicarbonate 2600 yuan / ton; Mercaptans 3,000 / ton; xylene 3,500 yuan / ton; potassium permanganate 5,000 yuan / ton; petroleum ether 3,000 yuan / ton; naphtha 2900 yuan / ton; butane 2,000 yuan / ton; acetone 4400 yuan / t; hydroquinone 15,000 yuan / ton.

轻质油2000元/吨；二茂铁20000元/吨；二甲醚2500元/吨；轻烃碳五[密度0.60-0.63]2000元/吨；碳酸氢钠2600元/吨；硫醇3000元/吨；二甲苯3500元/吨；高锰酸钾5000元/吨；石油醚3000元/吨；石脑油2900元/吨；丁烷2000元/吨；丙酮4400元/吨；对苯二酚15000元/吨。

Experimental study on the metal surface cleaning agent re-oil preparation process of the series,Obtained by experiment the optimum cleaning process conditions:2g respectively SDBS,2g sodium silicate,2g sodium nitrite dissolved in 100 ml of distilled water,making the steel sheet coated with oil immersed in cleaning agents,under the conditions which keeping the washing temperature 30℃,Stirring rate of 2 files,Cleaning time for 5 min of the cleaning Cleaning the oil to achieve the highest rate of 99.62%,Corrosion rate can be controlled below 0.006%.

实验研究了金属表面重油污清洗剂制备的系列工艺，通过实验得出其最佳的清洗工艺条件：分别取2g十二烷基苯磺酸钠、 2g硅酸钠、2g亚硝酸钠溶于100毫升蒸馏水中，将涂有油污的钢片浸入清洗剂中，在清洗温度为30℃，搅拌速率为2档，清洗时间为5 min的条件下清洗，其油污清洗率最高能达到99.62%，腐蚀率能控制在？以下。

In mole antimony-doped tin oxide were deposited on soda-lime glass substrate s with and without SiO_2-coated by the solgel method.

用溶胶凝胶法在已镀SiO2膜的钠钙硅玻璃和没有镀SiO2的钠钙硅玻璃基片上镀制了锑掺杂摩尔分数为8.0%的二氧化锡薄膜。

The main products are sodium tungstate, tungstic acid, ammonium perchlorate, tungsten trioxide, industrial ammonium molybdate, sodium molybdate, Chung-ammonium molybdate, ammonium tungsten migraine, two ammonium molybdate, barium molybdate, tungsten electrode wire cutter, cerium Tungsten welding electrode, etc., such as tungsten and molybdenum products.

主要产品有钨酸钠、钨酸、仲钨酸铵、三氧化钨、工业钼酸铵、钼酸钠、仲钼酸铵、偏钨酸铵、二钼酸铵、钼酸钡、钨绞丝电极、铈钨等氩弧焊电极等钨钼系列产品。

They are hydrogen peroxide, ammonium persulfate, sodium persulfate, chlorinated polypropylene, chloridized EVA, garox mek, carbon dioxide, hydrogen, sodium carboxymethyl cellulose, carboxymethyl amylum sodium, feed additive, auric salt and silver salt series, tin salt series, tin dichloride, silver nitrate, fireworks raw materials, spheroid form nickel hydroxide, refined sulfuric acid, battery sulfuric acid, ultramicro fine powder, compound fertilizer, 40% multiple sulfur suspending agent, 40% sulfur-tricyclazole suspending agent, 40% sulfur-multiple-trideflocculant, 20% pemiro-dichlor suspending agent, high panniculus adiposus and so on.

主要产品有：过氧化氢、过硫酸铵、过硫酸钠、氯化聚丙烯、氯化EVA 、过氧化甲乙酮、二氧化碳、氢气、羧甲基纤维素钠、羧甲基淀粉钠、饲料添加剂、金、银盐系列、锡盐系列、氯化亚锡、硝酸银、烟花原料、球形氢氧化镍、精制硫酸、电池硫酸、超微细粉体、复合肥、40%多硫悬浮剂、40%硫·三环唑悬浮剂、40%硫·多·三悬浮剂、20%吡嘧·二氯悬浮剂、高脂膜等10个系列百多个品种、规格产品。

As the characteristic of mulberry, it was used the soda-sodium pyrophosphate-sodium dodecyl sulphate process with low temperature cooking schedule, the major purpose was to decoating than deliganification.

针对这一特点，我们采用了烧碱－焦磷酸钠－十二烷基磺酸钠的方法，进行低温缓慢蒸煮。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。